6 Oil Gas & Consumable Fuels stocks are moving up in their overall rating this week, according to the Portfolio Grader database. Every one of these is graded an “A” (“strong buy”) or “B” overall (“buy”).

Concho Resources Inc.’s (CXO) ratings are looking better this week, moving up to a B from last week’s C. Concho Resources Inc. engages in the acquisition, exploration, and development of oil and natural gas properties in the United States. The company also gets A’s in earnings surprise. For more information, get Portfolio Grader’s complete analysis of CXO stock.

This is a strong week for Phillips 66 (PSX). The company’s rating climbs to A from the previous week’s B. Phillips 66 operates as an independent downstream energy company. The company also gets A’s in operating margin growth, earnings growth, earnings revisions, earnings surprise, and return on equity. For more information, get Portfolio Grader’s complete analysis of PSX stock.

Holly Energy Partners, L.P. (HEP) gets a higher grade this week, advancing from a C last week to a B. Holly Energy Partners, L.P. operates a system of refined product pipelines and distribution terminals primarily in West Texas, New Mexico, Utah, and Arizona. The company also gets A’s in return on equity. For more information, get Portfolio Grader’s complete analysis of HEP stock.

PBF Logistics LP (PBFX) is seeing ratings go up from a C last week to a B this week. The company also gets A’s in sales growth and earnings growth. For more information, get Portfolio Grader’s complete analysis of PBFX stock.

Dorian LPG Ltd. (LPG) shows solid improvement this week. The company’s rating rises from a C to a B. The company also gets A’s in sales growth, earnings growth, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of LPG stock.

This week, Tsakos Energy Navigation Limited (TNP) pushes up from a C to a B rating. Tsakos Energy Navigation Limited provides international seaborne crude oil and petroleum product transportation services. The company also gets A’s in sales growth. For more information, get Portfolio Grader’s complete analysis of TNP stock.

Louis Navellier’s proprietary Portfolio Grader stock ranking system assesses roughly 5,000 companies every week based on a number of fundamental and quantitative measures. Stocks are given a letter grade based on their results — with A being “strong buy,” and F being “strong sell.” Explore the tool here.